By: Margaret Peterson Haddix
The antagonist in this book, is the Clifton police/owners. These people have created a world to make money and do research and many people in this world are dying because they are not given any medicine. These antagonists don't care people are dying and are just going along with there work. When the protagonist, Jessie tries to escape and find medicine the Clifton men track her down and threaten to kill her. They don't want word getting out that people in Clifton are dying.